liwo/app/Models/Workflow.php

<?php

namespace App\Models;

use App\Models\Model;

class Workflow extends Model
{
    protected $fillable = ['business_id', 'name', 'desc', 'statuses'];

    protected $reportable = [
        'name'
    ];

    protected $fillable_relations = ['statuses'];

    public function rules()
    {
        return [
            'name' => 'required|string|min:3|max:225',
            'desc' => 'nullable|string|min:3|max:225',
            'statuses' => 'required|array|min:2',
            'statuses.*' => 'required|array|min:2',
            'statuses.*.id' => 'nullable|numeric',
            'statuses.*.name' => 'required|string|min:3',
            'statuses.*.state' => 'required|numeric|between:0,3',
            'statuses.*.order' => 'nullable|numeric',
        ];
    }

    public function getValueOf(?string $key)
    {
        $values = [
            'business_id' => $this->business_id,
            'project_id' => null,
            'sprint_id' => null,
            'workflow_id' => $this->id,
            'status_id' => null,
            'system_id' => null,
            'user_id' => null,
            'task_id' => null,
            'subject_id' => $this->id,
        ];

        if ($key && isset($values, $key)) {
            return $values[$key];
        }

        return $values;
    }

    public function updateRelations()
    {
        $old_statuses_name = isset(\request('_business_info')['workflows'][$this->id]['statuses']) ?
            array_keys(collect(\request('_business_info')['workflows'][$this->id]['statuses'])->toArray()) :
            [];
        $new_statuses_name = array_keys(collect($this->filled_relations['statuses'])->keyBy('id')->toArray());
        $removed_statuses_name = array_diff(array_merge($old_statuses_name, $new_statuses_name), $new_statuses_name);

        foreach ($removed_statuses_name as $status_name) {
            //delete all statuses that removed name's from request->statuses
            $this->statuses()->where('id', $status_name)->first()->delete();
        }

        foreach (request('statuses') as $status) {
            //sync another statuses
            $this->statuses()
                ->updateOrCreate(
                    ['id' => $status['id'] ?? null, 'business_id' => $this->business_id, 'workflow_id' => $this->id],
                    ['name' => $status['name'], 'state' => $status['state'], 'order' => $status['order']]
                );
        }
    }

    public function business()
    {
        return $this->belongsTo(Business::class, 'business_id');
    }

    public function statuses()
    {
        return $this->hasMany(Status::class, 'workflow_id', 'id');
    }

    public function tasks()
    {
        return $this->hasMany(Task::class, 'workflow_id', 'id');
    }
}